#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main()
{int n;
double eps, r, s, x,f;
printf ("eps=");
scanf ("%lf%lf", &eps,&x);
n=0;
r=1+log(3)*x;
s=0;
f=1;
if (x<=0 || x>=1){
 printf("0<=x<=1 !!!!");
 return 0
;}

while (fabs(r) > eps)
{
s+=r;
printf("s=%.1lf\n",s);
n++;
printf("n=%d\t",n);
r*=(log(3)*x)/(n*(n+1));
printf("r=%lf\t",r);
f*=3*x;
printf("f=%lf\t",f);
}
printf("s=%lf\n x=%.1lf f=%.1lf", s ,x,f);
    return 0;
}